1 /* 2 * Copyright (C) 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.car.dialer.ui.favorite; 18 19 import android.os.Bundle; 20 import android.view.LayoutInflater; 21 import android.view.View; 22 import android.view.ViewGroup; 23 import android.widget.Toast; 24 25 import androidx.fragment.app.Fragment; 26 import androidx.lifecycle.ViewModelProviders; 27 28 import com.android.car.dialer.R; 29 import com.android.car.dialer.ui.common.DialerBaseFragment; 30 31 /** Contains either the "You haven't added any favorites yet" screen, or FavoriteListFragment */ 32 public class FavoriteFragment extends DialerBaseFragment { 33 newInstance()34 public static FavoriteFragment newInstance() { 35 return new FavoriteFragment(); 36 } 37 38 @Override onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)39 public View onCreateView(LayoutInflater inflater, ViewGroup container, 40 Bundle savedInstanceState) { 41 View view = inflater.inflate(R.layout.favorite_fragment, container, false); 42 View emptyPage = view.findViewById(R.id.empty_page_container); 43 Fragment listFragment = 44 getChildFragmentManager().findFragmentById(R.id.favorite_list_fragment); 45 46 FavoriteViewModel favoriteViewModel = ViewModelProviders.of(getActivity()).get( 47 FavoriteViewModel.class); 48 favoriteViewModel.getFavoriteContacts().observe(this, contacts -> { 49 if (contacts == null || contacts.isEmpty()) { 50 emptyPage.setVisibility(View.VISIBLE); 51 getChildFragmentManager().beginTransaction() 52 .hide(listFragment) 53 .commit(); 54 } else { 55 emptyPage.setVisibility(View.GONE); 56 getChildFragmentManager().beginTransaction() 57 .show(listFragment) 58 .commit(); 59 } 60 }); 61 62 emptyPage.findViewById(R.id.add_favorite_button).setOnClickListener(v -> 63 Toast.makeText(getContext(), "Not yet implemented", Toast.LENGTH_LONG).show()); 64 65 return view; 66 } 67 } 68